China Science & Technology Forum

[JSCh]

Ancient China's 88 major sci&tech achievements selected
Source: Xinhua 2016-07-14 20:50:15

BEIJING, July 14 (Xinhua) -- Ancient Chinese civilization not only invented papermaking and the compass, but also the decimal system, rockets and variolation, China's top science academy said Thursday.

Chinese Academy of Sciences (CAS) on Thursday published a list of 88 major scientific and technological achievements in ancient China, which are separated into three categories: engineering, scientific findings and technology.

Pinhole imaging and linear equations are among major scientific findings; rice and wheat cultivation, the crossbow and stirrup are listed under technological achievements, with the Dujiangyan irrigation system and the Great Wall among major engineering feats.

Zhang Baichun, head of the Institute for the History of Natural Sciences at the CAS, said the selection criteria focused on originality, and the significance to world civilization.

Foreign experts were invited to share their opinions, Zhang added.

Ancient Chinese civilization made great achievements in science and technology, and is famous for the "Four Great Inventions": papermaking, gunpowder, the compass and printing.

The book is published by China Science and Technology Publishing House.

 

[JSCh]

IAEA completes review of China-developed DCS FirmSys
Source: Xinhua 2016-07-13 18:57:39

BEIJING, July 13 (Xinhua) -- China's Digital Control System (DCS) FirmSys has passed a review by the International Atomic Energy Agency (IAEA), the country's state-owned assets watchdog said on Wednesday.

This will help China's manufacturing industry expand its influence and boost its global presence, the State-owned Assets Supervision and Administration Commission of the State Council said on its website.

DCS, which can control the operation of over 260 systems and nearly 10,000 pieces of equipment, is vital to nuclear power plants, ensuring safety, reliability and stability.

Following the United States, France and Japan, China is the fourth country with its own DCS.

DCS FirmSys, cheaper than its foreign counterparts, has been widely used in China's nuclear power plants, and is expected to be used in aviation and shipbuilding in the future.

 

[JSCh]

Novel algorithm predicts drug combinations to treat drug resistant fungal infections
July 14, 2016

Scientists have created an algorithm that can identify drug combinations to treat fungal infections that have become resistant to current drug treatments. This new study, published in PLOS Computational Biology, represents a strategy for treating complex diseases and finding new uses for existing drugs.


Link -> http://medicalxpress.com/news/2016-07-algorithm-drug-combinations-resistant-fungal.html

 

[JSCh]

China-U.S. joint team discovers new green battery catalyst
Source: Xinhua 2016-07-13 19:27:44

TIANJIN, July 13 (Xinhua) -- A China-U.S. joint research team has found a new catalyst to make magnesium-air battery, a green energy source, cheaper and last longer.

The team, led by Wang Weichao at Nankai University, China, and Yao Yan at Houston University, America, found that manganese-based mullite, a component of porcelain, can serve as a new catalyst for producing electricity in metal-air batteries.

The substance, used in metal-air batteries for the first time, is more available and stable compared with traditional catalysts, according to the researchers.

Their findings were published on academic magazine Nano Energy's website, late last month.

Metal-air batteries create electricity through a reaction (ORR) between metal and oxygen, both of which are abundant. It is the catalyst used in ORR that limits metal-air battery development and its application in electric cars.

Traditional ORR catalysts are either too expensive or too complicated to produce. "Platinum, a commonly used catalyst, costs 200 yuan (30 U.S. dollars) per gram. But for mullite, it is affordable, even by the tonne," Yao said.

"Mullite is also more stable, so it can be used repeatedly, meaning the battery will last longer. We expect more applications of this material in electrochemistry," Yao said.

 

[JSCh]

Researchers demonstrate room-temperature ferroelectric states in ultra-thin films of tin and tellurium
July 15, 2016 by Denis Paiste

Just as magnetic materials have opposing North and South poles, ferroelectric materials have opposing positive charges and negative charges that exhibit measurable differences in electric potential. Researchers at MIT and colleagues in China recently demonstrated this ferroelectric behavior along the edges of atomically thin tin-tellurium film at room temperature.

Measurements showed the energy gap, or bandgap, of this ultra-thin (2-D) film to be about eight times higher than the bandgap in bulk (3-D) tin-tellurium, with an on/off ratio as high as 3,000, they report July 15 in the journal Science. Their findings hold promise for making random access memory (RAM) devices from this special semiconductor material, which is known as a topological crystalline insulator.


Full story -> http://phys.org/news/2016-07-room-temperature-ferroelectric-states-ultra-thin-tin.html
http://phys.org/news/2016-07-room-temperature-ferroelectric-states-ultra-thin-tin.html
More information: K. Chang et al. Discovery of robust in-plane ferroelectricity in atomic-thick SnTe, Science (2016). DOI: 10.1126/science.aad8609

​

Thinning a ferroelectric makes it better
As a ferroelectric material becomes thinner, the temperature below which it develops its permanent electrical polarization usually decreases. Chang et al. fabricated high-quality thin films of SnTe that, in contrast to this conventional wisdom, had a considerably higher transition temperature than that of the material in bulk (see the Perspective by Kooi and Noheda). This was true even for single-unit cell films, whereas only slightly thicker films became ferroelectric above room temperature. This finding may enable the miniaturization of ferroelectric devices.

Science, this issue p. 274; see also p. 221​

 

[JSCh]

18 July 2016
New Technique Developed for Effective Dye Removal and Low-Cost Water Purification

Chinese scientists developed a novel and versatile approach for synthesizing silver-based hybrid nano-particles using laser-induced fabrication, demonstrating the nano-composite’s potential as high-performance adsorbent for dye removal and low-cost water purification

WASHINGTON — Organic compounds in wastewater, such as dyes and pigments in industry effluents, are toxic or have lethal effect on aquatic living and humans. Increasing evidence has shown that the organic contaminants discharged from electroplating, textile production, cosmetics, pharmaceuticals are the main reasons for the higher morbidity rates of kidney, liver, and bladder cancers, etc. Organic contaminants, especially methyl blue and methyl orange, are stable to light, heat or oxidizing agents and very difficult to remove by conventional chemical or biological wastewater treatment techniques. Recently scientists have developed some new strategies with good dye-removal performance; however, a subsequent adsorbent purification procedure is unavoidable after water treatment, which are often complicated and not suitable for practical water treatment.



Link -> New Technique Developed for Effective Dye Removal and Low-Cost Water Purification | News Releases | The Optical Society

Paper: Hua Zhang, Ming Chen, Dameng Wang, Linlin Xu, and Xiangdong Liu, "Laser induced fabrication of mono-dispersed Ag2S@Ag nano-particles and their superior adsorption performance for dye removal," Opt. Mater. Express 6, 2573-2583 (2016). DOI: 10.1364/OME.6.002573

 

[JSCh]

Chinese scientists to pioneer first human CRISPR trial
Gene-editing technique to treat lung cancer is due to be tested in people in August.

• David Cyranoski
• 21 July 2016

STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY
Genes in immune cells will be edited in an effort to turbocharge their attack on tumours.​

Chinese scientists are on the verge of being first in the world to inject people with cells modified using the CRISPR–Cas9 gene-editing technique.

A team led by Lu You, an oncologist at Sichuan University’s West China Hospital in Chengdu, plans to start testing such cells in people with lung cancer next month. The clinical trial received ethical approval from the hospital's review board on 6 July.



Link -> Chinese scientists to pioneer first human CRISPR trial : Nature News & Comment

 

[JSCh]

PandaX Dark Matter Experiment | a dark matter experiment at China Jin-Ping underground lab

NEWS

July 22, 2016 – Prof. Xiangdong Ji, spokes person of the PandaX project located in the China JinPing underground Laboratory (CJPL), announced the first dark matter search results from the PandaX-II 500 kg liquid xenon detector in the 2016 conference on the Identification of Dark Matter at Sheffield, UK in the evening of July 21, 2016 (Beijing Time), stating that no trace of dark matter was observed within the exposure of 33,000 kg·day, providing further constraints on the possible candidates of dark matter. The sensitivity of the detection has reach the best level around the world. Link to the slides

-----#####------​

China provides further constraints on possible candidates of dark matter

The world's most sensitive liquid xenon detector in China has provided further constraints on the possible candidates of dark matter.

At the 11th Identification of Dark Matter conference (IDM2016) in Britain on Thursday, China announced the first dark-matter search results from the PandaX-II 500-kg liquid xenon detector, saying that no trace of dark matter was observed within the exposure of 33,000 kg·day, providing further constraints on possible candidates of dark matter, according to the website of China's PandaX Dark Matter Experiment.

"Current experiment data showed strong ability of the detector, which has the lowest background radiation in the world. The experiment results are clean with little noise. Under such a condition and with our exposure amount, we didn't see any signs of dark matter," said Professor Ji Xiangdong, who announced the results at the IDM2016 as spokesman of the PandaX project.

A bigger detector is like a tighter net, having more chance to discover dark matter, according to Liu Jianglai, a professor of Shanghai Jiaotong University.

"We don't know the intensity generated from interaction between dark matter and ordinary matters, so when we make the net tighter, we can better screen section of the interaction. And when we make the net tight enough to be smaller than the section, we can find the dark matter," Liu said.

The PandaX experiment is located at the China Jinping Underground Laboratory (CJPL), which is in the middle of a 18-km tunnel under 2,400 meters of rock overburden in southwestern Sichuan Province. As one of the deepest underground labs in the world; the CJPL has an extremely low flux of muon rate, which makes the lab ideal for a sensitive dark matter detection, according to the website of the project.

Dark matter is thought to account for about 27 percent of the mass and energy in the observable universe. The name refers to the fact that it does not emit or interact with electromagnetic radiation, such as light, and is thus invisible to the entire electromagnetic spectrum.

http://newscontent.cctv.com/NewJsp/news.jsp?fileId=366879

 

[bobsm]

Chinese scientists develop new metal 3D printing technology
(Xinhua)
Updated: 2016-07-25 15:26

WUHAN - Researchers with Huazhong University of Science and Technology in central China's Hubei Province have successfully manufactured metal parts and molds using new 3D printing technology, sources with the university announced on Friday. The new metal 3D printing technology addresses existing problems in traditional metal 3D printing methods, said Zhang Hai'ou, leader of the 3D printing technology research team at the university.

These problems, such as flowing, dropping or crumbling of fused materials due to gravity, cracking, stress and rapid heating and cooling can severely affect modeling performance and accuracy, according to Zhang.

After over a decade of research, Zhang and other researchers have independently developed the new method of metal 3D printing, called "intelligent micro casting and forging." The method combines metal casting and forging technology and significantly improves the strength and ductility of metal molds to expand their life and reliability.

The invention has also reduced the costs for forging equipment and raw materials through a computer-controlled modeling process, Zhang said.

The technology has been awarded both national and international patents. It can be applied in the aerospace, medical, and auto industries, among others.

http://www.chinadaily.com.cn/china/2016-07/25/content_26213835.htm

 

[bobsm]

DNA technique heralds future advances in disease detection
By Zhou Wenting (China Daily)
Updated: 2016-07-25 08:09

Scientists in Shanghai have come up with a way to obtain accurate test results from microscopic DNA samples, paving the way for breakthroughs in the detection of cancer and venereal disease.

Their technique, called LcnPCR, developed during more than 10 years of research at the Institute of Biochemistry and Cell Biology, a branch of the Shanghai Institutes for Biological Sciences at the Chinese Academy of Sciences.

It has been included in Methods in Molecular Biology, a textbook "for everybody in the molecular biology field around the world", said Wang Xuecai, deputy director of the institute.

The new procedure improves upon a previous method known as polymerase chain reaction, which is the current standard used in almost every hospital and life-science laboratory worldwide.

Groundbreaking for its time, PCR was the first technique that made it possible to get an accurate test result or diagnosis from a very small DNA sample.

Its inventor, US biochemist Kary Mullis, jointly won the Nobel Prize in chemistry for it in 1993.

However, PCR has drawbacks－the technique is prone to error, and any mistakes that do appear are then copied across each iteration of the DNA sequence.

LcnPCR, on the other hand, assures a higher degree of accuracy and sensitivity, which will benefit everyone from forensic investigators to inspection and quarantine teams at airport customs, according to Hong Guofan, the lead researcher.

Researchers used the new technique to detect HPV, a virus that can cause cervical cancer but is notoriously difficult to accurately diagnose, and found that LcnPCR improved the detection rate.

"The wrong diagnosis may lead to excessive medical treatment and a heavy emotional impact on some patients, while it would lead to delayed treatment for others," said Zhou Tianjun, another researcher on the team.

The institute has now signed a licensing agreement worth 10 million yuan ($1.5 million) with Shenzhen-based biotech consulting firm Zhongrui International for the exclusive use of the technique.

http://www.chinadaily.com.cn/china/2016-07/25/content_26205160.htm

 

[JSCh]

25 July 2016
Graphene partnership could deliver lighter planes

Newsfacts:

• The strength, thinness and conductivity of graphene are of great potential to aviation
• Long-term partnership could attract UK aviation firms

A major Chinese investment in graphene research plans to deliver lighter, better performing aircraft and high-speed trains.

Beijing Institute of Aeronautical Materials (BIAM) and the National Graphene Institute (NGI) at The University of Manchester will carry out a five-year collaborative research project.

Research will focus on composites with enhanced performance in the field of mechanical, electric conductive and thermal conductive behaviour, as well as the compatibility of graphene and the matrix materials. In aerospace this might lead to applications of graphene in different materials and components, with weight saving accompanied by better performance.

As well as aircraft, the research could have an impact on high-speed trains and industrial equipment to replace traditional materials.

The deal was announced today on the opening morning of the European Science Open Forum in Manchester by Prof Robert Young, who leads the research project at The University of Manchester.

Speaking at a session called ’Science and Aviation’, organised in partnership with Manchester Airport and Hainan Airlines, Professor Young outlined how graphene could revolutionise the planes and trains of the future.

The announcement is being delivered in parallel to a senior delegation from Manchester – including one of the Nobel-prize winning scientists who isolated graphene – being in Beijing to promote the city and as world-leading destination for inward investment and tourism.

Graphene has been included in the latest Chinese five-year plan and the country is starting to develop their domestic civil aerospace industry and expect to improve their expertise on materials.

The project, which will run until 2020, will involve joint research on graphene projects, strengthening of the ties in graphene technology and the exchange of personnel between Beijing and Manchester.

The partnership is an extension of a project started last year, which is looking at creating graphene composites with metals such as aluminium. The success of the partnership led to this much wider, extended project.

It is also expected that other UK companies, particularly in aerospace, may become directly involved as the projects progress.

This partnership with the Beijing Institute of Aeronautical Materials will further strengthen ties between Manchester and China. It is another vote of confidence in Manchester
Sir Richard Leese​

Dr Shaojiu Yan, the principal investigator of graphene projects from BIAM, said: ”The relationship between BIAM and The University of Manchester warms up quickly.”

“We had a very good communication on the first collaborative project. Now a long term partnership would benefit us to broaden the research area on graphene materials, to enhance the collaborative research, as well as to exchange experience and expertise on graphene.”

Professor Young said: “BIAM have a rapidly developing research programme on graphene composites and we are looking forward to pooling our expertise with them to facilitate the use of these materials in aerospace applications”.

Sir Richard Leese, leader of Manchester City Council, said: "It is firmly established that Manchester has many distinctive strengths which make the city - and help make the North of England as a whole - competitive on the international stage.

"This partnership with the Beijing Institute of Aeronautical Materials will not only go a long way towards finding hugely significant commercial applications for graphene research, it will further strengthen ties between Manchester and China - ties which are ever more important as China emerges as a key player in the global economy. It is another vote of confidence in Manchester.”

http://www.manchester.ac.uk/discover/news/graphene-partnership-could-deliver-lighter-planes

How can graphene be used in planes?

The University of Manchester – The home of graphene

Published on Sep 11, 2015
In this video we look at how graphene can be used in aviation. There are many benefits and possibilities that graphene holds for planes both in the long and short term, such as improving the plastic that holds together the carbon fibre within the wings. This may help stop water entering the wings, which adds weight to the aircraft. It could also be used to measure strain in the wings to work out there is any damage.

Replacing the copper wiring and copper heating coils could also reduce the weight in wings which could overall prevent ice being built up on the wings. Ultimately replacing the carbon fibre in the wings is the ultimate goal, however this may be a very long term project that may be at least 20 years away.

Narrated by Professor Ian Kinloch, a lecturer in Materials Science School of Materials. His research focuses on Polymeric and carbon (graphene and nanotubes) and related nano materials.

 

[bobsm]

Chinese mega-telescope obtains data on 7 million stars
Source: Xinhua 2016-07-26 20:21:18

NANJING, July 26 (Xinhua) -- A Chinese telescope has collected data on over 7 million stars, exceeding the sum of all existing spectroscopic data on stars and making it the world's largest database in the field.

The Guo Shoujing telescope, named after a 13th-century Chinese astronomer, is operated by the National Astronomical Observatories under the Chinese Academy of Sciences, which recently released the findings.

The telescope has been in use since 2012. It is the world's first large-area telescope that can observe the spectra of 4,000 stars at a time.

The spectra of stars can relay key information, such as a star's state of motion, temperature, mass, and chemical composition, according to Hou Yonghui, an astronomical researcher with the CAS.

"Data are paramount for astronomical studies," said Liu Chao, a fellow researcher with the national observatories. The data gathered by the Guo Shoujing telescope have led to a number of scientific discoveries.

In 2014, scientists used the telescope to discover a hypervelocity star, which are stars that can travel at high speeds to escape the gravity of a galaxy.

Dozens of hypervelocity stars are expected to be discovered after the recent data release, according to astronomers. ' The telescope also provides data for measuring the mass of "dark matter," a critical concept in the theoretical study of the universe.

With a larger database thanks to the telescope, measurements of the mass of "dark matter" could become more accurate, according to researchers.

http://news.xinhuanet.com/english/2016-07/26/c_135542003.htm

 

[JSCh]

Public Release: 26-Jul-2016
Making terahertz lasers more powerful
Researchers in China nearly double the continuous output power of a type of terahertz laser, opening up applications in spectroscopy, imaging, remote sensing and more

American Institute of Physics

This is a scanning electron microscope image of the terahertz quantum cascade laser. Credit: Wang, et al/AIP Advances​

WASHINGTON, D.C., July 26, 2016 -- Researchers have nearly doubled the continuous output power of a type of laser, called a terahertz quantum cascade laser, with potential applications in medical imaging, airport security and more. Increasing the continuous output power of these lasers is an important step toward increasing the range of practical applications. The researchers report their results in the journal AIP Advances, from AIP Publishing.

Terahertz radiation sits between microwaves and infrared light on the electromagnetic spectrum. It is relatively low-energy and can penetrate materials such as clothing, wood, plastic and ceramics. The unique qualitites of terahertz radiation make it an attractive candidiate for imaging, but the ability to produce and control terahertz waves has lagged behind technology for radio, microwave and visible light.

Recently, scientists have made rapid progress on a technology to produce terahertz light called a quantum cascade laser or QCL. Quantum cascade lasers are made from thin layers of material. The thin layers give the laser the valuble property of tunability, meaning the laser can be designed to emit at a chosen wavelength. The output power of terahertz QCLs is also relatively high compared to other terahertz sources, said Xuemin Wang, a researcher in the China Academy of Engineering Physics and first author on the new paper.

Wang and his colleagues' work focuses on even further increasing the output power of terahertz quantum cascade lasers, especially in the mode in which the laser output power is continuous. "In engineering, biomechanics and medical science, the applications require continuous wave mode," Wang said.

By optimizing the material growth and manufacturing process for terahertz QCLs, Wang and his team made a laser with a record output power of up to 230 milliwatts in continuous wave mode. The previous record was 138 milliwatts.

Wang said the new 230 milliwatt laser could be used in air, a challenge for lower-powered lasers since particles in the air can scatter or absorb the laser light before it reaches its target.

The increase demonstrates that the team's method of precisely controlling the growth of the laser's layers can increase output power, Wang said, and he is hopeful that future improvements could bring the continuous power above 1 watt. The 1 watt level has been reached in terahertz QCLs in pulsed wave mode.

Wang said he thinks scientists and engineers could use the new laser as a flexible source of terahertz radiation for spectroscopy, medicial imaging, remote sensing and other applications.

###​

The article, "High-power terahertz quantum cascade lasers with ~0.23 W in continuous wave mode," is authored by Xuemin Wang, Changle Shen, Tao Jiang, Zhiqiang Zhan, Qinghua Deng, Weihua Li, Weidong Wu, Ning Yang, Weidong Chu and Suqing Duan. It will be published in the journal AIP Advances on July 26, 2016 (DOI: 10.1063/1.4959195). After that date, it can be accessed at: http://scitation.aip.org/content/aip/journal/adva/6/7/10.1063/1.4959195


Making terahertz lasers more powerful | EurekAlert! Science News

 

[Han Patriot]

Public Release: 26-Jul-2016
Making terahertz lasers more powerful
Researchers in China nearly double the continuous output power of a type of terahertz laser, opening up applications in spectroscopy, imaging, remote sensing and more

American Institute of Physics

​

This is a scanning electron microscope image of the terahertz quantum cascade laser. Credit: Wang, et al/AIP Advances​

WASHINGTON, D.C., July 26, 2016 -- Researchers have nearly doubled the continuous output power of a type of laser, called a terahertz quantum cascade laser, with potential applications in medical imaging, airport security and more. Increasing the continuous output power of these lasers is an important step toward increasing the range of practical applications. The researchers report their results in the journal AIP Advances, from AIP Publishing.

Terahertz radiation sits between microwaves and infrared light on the electromagnetic spectrum. It is relatively low-energy and can penetrate materials such as clothing, wood, plastic and ceramics. The unique qualitites of terahertz radiation make it an attractive candidiate for imaging, but the ability to produce and control terahertz waves has lagged behind technology for radio, microwave and visible light.

Recently, scientists have made rapid progress on a technology to produce terahertz light called a quantum cascade laser or QCL. Quantum cascade lasers are made from thin layers of material. The thin layers give the laser the valuble property of tunability, meaning the laser can be designed to emit at a chosen wavelength. The output power of terahertz QCLs is also relatively high compared to other terahertz sources, said Xuemin Wang, a researcher in the China Academy of Engineering Physics and first author on the new paper.

Wang and his colleagues' work focuses on even further increasing the output power of terahertz quantum cascade lasers, especially in the mode in which the laser output power is continuous. "In engineering, biomechanics and medical science, the applications require continuous wave mode," Wang said.

By optimizing the material growth and manufacturing process for terahertz QCLs, Wang and his team made a laser with a record output power of up to 230 milliwatts in continuous wave mode. The previous record was 138 milliwatts.

Wang said the new 230 milliwatt laser could be used in air, a challenge for lower-powered lasers since particles in the air can scatter or absorb the laser light before it reaches its target.

The increase demonstrates that the team's method of precisely controlling the growth of the laser's layers can increase output power, Wang said, and he is hopeful that future improvements could bring the continuous power above 1 watt. The 1 watt level has been reached in terahertz QCLs in pulsed wave mode.

Wang said he thinks scientists and engineers could use the new laser as a flexible source of terahertz radiation for spectroscopy, medicial imaging, remote sensing and other applications.

###​

The article, "High-power terahertz quantum cascade lasers with ~0.23 W in continuous wave mode," is authored by Xuemin Wang, Changle Shen, Tao Jiang, Zhiqiang Zhan, Qinghua Deng, Weihua Li, Weidong Wu, Ning Yang, Weidong Chu and Suqing Duan. It will be published in the journal AIP Advances on July 26, 2016 (DOI: 10.1063/1.4959195). After that date, it can be accessed at: http://scitation.aip.org/content/aip/journal/adva/6/7/10.1063/1.4959195


Making terahertz lasers more powerful | EurekAlert! Science News

Amazing. You guys should read this book called
History of Modern Optics and Optoelectronics Development in China.

They were real pioneers in developing laser crystals in the 60s, 70s during the cultural revolution, under hunger. Without their foundation, we wouldn't have been able to create all these advances.

 

[JSCh]

Baidu's artificial intelligence advance makes music by looking at pictures
July 25, 2016 by Nancy Owano

(Tech Xplore)—Suddenly a prediction made back in April carries special resonance. Zen Soo, technology reporter at the South China Morning Post, was referring to a Microsoft executive saying China will lead the world in producing artificially intelligent hardware as the tech industry continues to find breakthroughs in this field.

The Microsoft person speaking was Harry Shum, executive vice-president of technology and research in Microsoft. He cited examples of Chinese internet companies playing an important role in advancing artificial intelligence—like Baidu.

Baidu this month is proving to be pretty impressive in the field. Roger Decierdo in Yibada wrote Friday that Baidu has figured out how to create music just by looking at art. "Chinese Internet giant Baidu unveiled a new artificial intelligence program that reportedly can create music based on the art it sees."



Full Story -> https://techxplore.com/news/2016-07-baidu-artificial-intelligence-advance-music.html